Researchers have found that unusually high temperatures slow children's early childhood development, especially in learning to read and basic math skills. Children living in warmer conditions are less likely to reach these key developmental milestones. The most affected are children who also face economic difficulties or have limited access to resources. The study emphasizes that climate change can negatively affect the cognitive and educational development of children even before they start school. This impact of rising temperatures poses a significant risk to children's future development, which may have long-term consequences for their ability to learn and adapt. The research draws attention to the need to take climate factors into account when planning measures to support early childhood development.